/**
 *
 * The MIT License
 *
 * Copyright (c) 2008 Board of Trustees, Leland Stanford Jr. University. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:

 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.macdadi.ks.client.data;

import com.google.gwt.user.client.rpc.IsSerializable;

import java.util.HashMap;
import java.util.ArrayList;

/**
 * @author Ben Suter <ben.suter@gmail.com>
 */
public class ImpactMatrix implements IsSerializable
{
    /**
     * @gwt.typeArgs <java.lang.String,org.macdadi.ks.client.data.Impact>
     */
    protected HashMap impacts = new HashMap();
    /**
     * @gwt.typeArgs <org.macdadi.ks.client.data.WeightedGoal>
     */
    protected ArrayList goals = new ArrayList();
    /**
     * @gwt.typeArgs <org.macdadi.ks.client.data.Option>
     */
    protected ArrayList options = new ArrayList();

    protected String getKey(WeightedGoal goal, Option option) {
        return goal.getId() + "." + option.getId();
    }

    public Impact getImpact(WeightedGoal goal, Option option) {
        return (Impact) impacts.get(getKey(goal, option));
    }

    // TODO: figure out ORDER for options and goals!
    public void addImpact(Impact impact) {
        WeightedGoal g;
        Option o;
        g = impact.getGoal();
        o = impact.getOption();

        if ( ! goals.contains(g) )
            goals.add(g);

        if ( ! options.contains(o) )
            options.add(o);

        impacts.put(getKey(g, o), impact);
    }


    public Option[] getOptions() {
        return (Option[]) options.toArray(new Option[options.size()]);
    }

    public WeightedGoal[] getGoals() {
        return (WeightedGoal[]) goals.toArray(new WeightedGoal[goals.size()]);
    }
}
